Tell us what’s happening:
Describe your issue in detail here.
**Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>JS Documentation Page</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<main id="main-doc">
<section class="main-section" id="Introduction">
<header>Introduction</header>
</section>
<section class="main-section" id="What_you_should_already_know">
<header>What you should already know</header>
</section>
<section class="main-section" id="JavaScript_and_Java">
<header>JavaScript and Java</header>
</section>
<section class="main-section" id="Hello_world">
<header>Hello world</header>
</section>
<section class="main-section" id="Variables">
<header>Variables</header>
</section>
<section class="main-section" id="Declaring_variables">
<header>Declaring variables</header>
</section>
<section class="main-section" id="Variables_scope">
<header>Variables scope</header>
</section>
<section class="main-section" id="Global_variables">
<header>Global variables</header>
</section>
<section class="main-section" id="Constants">
<header>Constants</header>
</section>
<section class="main-section" id="Data_types">
<header>Data types</header>
</section>
<section class="main-section" id="if...else_statement">
<header>if...else statement</header>
</section>
<section class="main-section" id="while_statement">
<header>while statement</header>
</section>
<section class="main-section" id="Function_declarations">
<header>Function declarations</header>
</section>
<section class="main-section" id="Reference">
<header>Reference</header>
</section>
</main>
<nav id="navbar">
<header><a class="nav-link" href="#Introduction">Introduction</a></header>
<header><a class="nav-link" href="#What_you_should_already_know">What you should already know</a></header>
<header><a class="nav-link" href="#JavaScript_and_Java">JavaScript and Java</a></header>
<header><a class="nav-link" href="#Hello_world">Hello world</a></header>
<header><a class="nav-link" href="#Variables">Variables</a></header>
<header><a class="nav-link" href="#Declaring_variables">Declaring variables</a></header>
<header><a class="nav-link" href="#Variables_scope">Variables scope</a></header>
<header><a class="nav-link" href="#Global_variables">Global variables</a></header>
<header><a class="nav-link" href="#Constants">Constants</a></header>
<header><a class="nav-link" href="#Data_types">Data types</a></header>
<header><a class="nav-link" href="#if...else_statement">if...else statement</a></header>
<header><a class="nav-link" href="#while_statement">while statement</a></header>
<header><a class="nav-link" href="#Function_declarations">Function declarations</a></header>
<header><a class="nav-link" href="#Reference">Reference</a></header>
</nav>
</body>
</html>
/* file: styles.css */
Failed:Your #navbar
should have exactly one header
element within it.
Why am i getting this error?
**Your browser information:**
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36
Challenge: Build a Technical Documentation Page
Link to the challenge: